3D Numerical Simulation of a Large Scale MTO Fluidized Bed Reactor

2013 ◽  
Vol 52 (33) ◽  
pp. 11354-11364 ◽  
Author(s):  
Yinfeng Zhao ◽  
Hua Li ◽  
Mao Ye ◽  
Zhongmin Liu
Keyword(s):  
Numerical Simulation ◽  
Fluidized Bed ◽  
Large Scale ◽  
Fluidized Bed Reactor ◽  
3D Numerical Simulation

3D Numerical Simulation of Polydisperse Pressurized Gas-Solid Fluidized Bed

2011 ◽  
Author(s):  
P. Fede ◽  
O. Simonin ◽  
I. Ghouila
Keyword(s):  
Numerical Simulation ◽  
Fluidized Bed ◽  
Ethylene Polymerization ◽  
Solid Phase ◽  
Three Dimensional ◽  
Gas Velocity ◽  
Particle Segregation ◽  
3D Numerical Simulation ◽  
Model Predictions ◽  
The Mean

Three dimensional unsteady numerical simulations of dense pressurized polydisperse fluidized bed have been carried out. The geometry is a medium-scale industrial pilot for ethylene polymerization. The numerical simulation have been performed with a polydisperse collision model. The consistency of the polydisperse model predictions with the monodisperse ones is shown. The results show that the pressure distribution and the mean vertical gas velocity are not modified by polydispersion of the solid phase. In contrast, the solid particle species are not identically distributed in the fluidized bed indicating the presence of particle segregation.

Anaerobic treatment and biogas recovery for sago wastewater management using a fluidized bed reactor

2001 ◽  
Vol 44 (6) ◽  
pp. 141-147 ◽  
Author(s):  
R. Saravanane ◽  
D. V.S. Murthy ◽  
K. Krishnaiah
Keyword(s):  
Fluidized Bed ◽  
Large Scale ◽  
Fluidized Bed Reactor ◽  
Anaerobic Treatment ◽  
Solid Content ◽  
Treated Wastewater ◽  
Maximum Efficiency ◽  
Cow Dung ◽  
Wastewater Management ◽  
High Concentration

Starch manufacturing industrial units, such as sago mills, both at medium and large scale, suffer from inadequate treatment and disposal problems due to high concentration of suspended solid content present in the effluent. In order to investigate the viability of treatment of sago effluent, a laboratory scale study was conducted. The treatment of sago effluent was studied in a continuous flow anaerobic fluidized bed reactor. The start-up of the reactor was carried out using a mixture of digested supernatant sewage sludge and cow dung slurry in different proportions. The effect of operating variables such as COD of the effluent, bed expansion, minimum fluidization velocity on efficiency of treatment and recovery of biogas was investigated. The treated wastewater was analysed for recycling and reuse to ensure an alternative for sustainable water resourse management. The maximum efficiency of treatment was found to be 82% and the nitrogen enriched digested sludge was recommended for agricultural use.

Filtered model for the cold-model gas–solid flow in a large-scale MTO fluidized bed reactor

2016 ◽  
Vol 143 ◽  
pp. 369-383 ◽  
Author(s):  
Li-Tao Zhu ◽  
Le Xie ◽  
Jie Xiao ◽  
Zheng-Hong Luo
Keyword(s):  
Fluidized Bed ◽  
Large Scale ◽  
Fluidized Bed Reactor ◽  
Cold Model ◽  
Solid Flow

Numerical simulation of effect of gas distributor on Fischer–Tropsch synthesis in fluidized-bed reactor

Particuology ◽  
2019 ◽  
Vol 45 ◽  
pp. 98-104 ◽  
Author(s):  
Xiaolai Zhang ◽  
Guangwei Zhai ◽  
Weixin Qian ◽  
Haitao Zhang ◽  
Qiwen Sun ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Gas Distributor

Numerical simulation of struvite crystallization in fluidized bed reactor

2018 ◽  
Vol 176 ◽  
pp. 242-253 ◽  
Author(s):  
Xin Ye ◽  
Yongchuan Gao ◽  
Jingcai Cheng ◽  
Dongyuan Chu ◽  
Zhi-Long Ye ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Struvite Crystallization

3D numerical simulation of a directly irradiated bubbling fluidized bed with SiC particles

2021 ◽  
Vol 190 ◽  
pp. 116812
Author(s):  
M. Díaz-Heras ◽  
J.I. Córcoles ◽  
J.F. Belmonte ◽  
J.A. Almendros-Ibáñez
Keyword(s):  
Numerical Simulation ◽  
Fluidized Bed ◽  
3D Numerical Simulation ◽  
Sic Particles ◽  
Bubbling Fluidized Bed
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